What is CVE-2026-28216?

CVE-2026-28216 is a high-severity vulnerability in Hoppscotch, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 8.3/10. Published 2026-02-26.

How severe is CVE-2026-28216?

High severity. CVSS v3 base score is 8.3 out of 10.

Auth bypass in Hoppscotch

CVE-2026-28216

hoppscotch is an open source API development ecosystem. Prior to version 2026.2.0, any logged-in user can read, modify or delete another user's personal environment by ID. `user-environments.resolver.ts:82-109`, `updateUserEnvironment` mut…

Vulnerability class: IDOR (Insecure Direct Object Reference)

EPSS: 0.000 (6.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.3 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L.

Affected products

Hoppscotch — versions < 2026.2.0

Weakness classification (CWE)

CWE-639 — Authorization Bypass Through User-Controlled Key

References

https://github.com/hoppscotch/hoppscotch/security/advisories/GHSA-72rv-vc3j-5vqr (x_refsource_CONFIRM)
https://github.com/hoppscotch/hoppscotch/releases/tag/2026.2.0 (x_refsource_MISC)

Frequently asked questions

What is CVE-2026-28216?: CVE-2026-28216 is a high-severity vulnerability in Hoppscotch, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 8.3/10. Published 2026-02-26.
How severe is CVE-2026-28216?: High severity. CVSS v3 base score is 8.3 out of 10.